CVE-2026-20181

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-17. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability in Cisco ISE and ISE-PIC could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. In single-node deployments, successful exploitation of this vulnerability could cause the affected ISE node to become unavailable, resulting in a denial of service (DoS) condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.

CVSS v3
9.1
EG Score
9.1(high)
EPSS
51.0%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 17, 2026
No patch confirmed yet.
generic

Cisco Identity Services Engine Remote Code Execution and Information Disclosure Vulnerabilities

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-G5WP8vv

Vendor Advisories for CVE-2026-20181(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 23× in last 7d / 186× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 225 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-19 02:28 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-18 10:04 UTCEPSS rescore
  11. 2026-07-17 05:44 UTCGHSA enrichment
  12. 2026-07-17 01:44 UTCGHSA enrichment
  13. 2026-07-16 21:41 UTCGHSA enrichment
  14. 2026-07-16 17:03 UTCEPSS rescore
  15. 2026-07-16 17:03 UTCEPSS rescore
  16. 2026-07-16 13:10 UTCGHSA enrichment
  17. 2026-07-16 09:12 UTCGHSA enrichment
  18. 2026-07-16 05:14 UTCGHSA enrichment
  19. 2026-07-16 01:17 UTCGHSA enrichment
  20. 2026-07-15 21:19 UTCGHSA enrichment
  21. 2026-07-15 17:15 UTCGHSA enrichment
  22. 2026-07-15 16:57 UTCEPSS rescore
  23. 2026-07-15 16:57 UTCEPSS rescore
  24. 2026-07-15 13:13 UTCGHSA enrichment
  25. 2026-07-15 07:48 UTCGHSA enrichment
Show 75 more
  1. 2026-07-15 03:48 UTCGHSA enrichment
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-14 23:45 UTCGHSA enrichment
  5. 2026-07-14 19:44 UTCGHSA enrichment
  6. 2026-07-14 15:17 UTCGHSA enrichment
  7. 2026-07-14 11:19 UTCGHSA enrichment
  8. 2026-07-14 06:48 UTCGHSA enrichment
  9. 2026-07-14 02:46 UTCGHSA enrichment
  10. 2026-07-13 22:49 UTCGHSA enrichment
  11. 2026-07-13 22:30 UTCEPSS rescore
  12. 2026-07-13 18:49 UTCGHSA enrichment
  13. 2026-07-13 14:52 UTCGHSA enrichment
  14. 2026-07-13 10:54 UTCGHSA enrichment
  15. 2026-07-13 06:52 UTCGHSA enrichment
  16. 2026-07-13 06:13 UTCEPSS rescore
  17. 2026-07-13 06:13 UTCEPSS rescore
  18. 2026-07-13 02:38 UTCGHSA enrichment
  19. 2026-07-12 22:41 UTCGHSA enrichment
  20. 2026-07-12 18:44 UTCGHSA enrichment
  21. 2026-07-12 14:37 UTCGHSA enrichment
  22. 2026-07-12 10:40 UTCGHSA enrichment
  23. 2026-07-12 06:36 UTCGHSA enrichment
  24. 2026-07-12 05:46 UTCEPSS rescore
  25. 2026-07-12 05:46 UTCEPSS rescore
  26. 2026-07-12 02:28 UTCGHSA enrichment
  27. 2026-07-11 22:31 UTCGHSA enrichment
  28. 2026-07-11 18:34 UTCGHSA enrichment
  29. 2026-07-11 14:37 UTCGHSA enrichment
  30. 2026-07-11 10:40 UTCGHSA enrichment
  31. 2026-07-11 08:27 UTCEPSS rescore
  32. 2026-07-11 06:38 UTCGHSA enrichment
  33. 2026-07-11 02:41 UTCGHSA enrichment
  34. 2026-07-10 22:44 UTCGHSA enrichment
  35. 2026-07-10 18:43 UTCGHSA enrichment
  36. 2026-07-10 14:46 UTCGHSA enrichment
  37. 2026-07-10 09:57 UTCGHSA enrichment
  38. 2026-07-10 05:32 UTCGHSA enrichment
  39. 2026-07-10 01:20 UTCGHSA enrichment
  40. 2026-07-09 21:01 UTCGHSA enrichment
  41. 2026-07-09 19:10 UTCEPSS rescore
  42. 2026-07-09 17:04 UTCGHSA enrichment
  43. 2026-07-09 12:53 UTCGHSA enrichment
  44. 2026-07-09 08:57 UTCGHSA enrichment
  45. 2026-07-09 04:56 UTCGHSA enrichment
  46. 2026-07-09 00:59 UTCGHSA enrichment
  47. 2026-07-08 21:02 UTCGHSA enrichment
  48. 2026-07-08 17:05 UTCGHSA enrichment
  49. 2026-07-08 15:15 UTCEPSS rescore
  50. 2026-07-08 15:15 UTCEPSS rescore
  51. 2026-07-08 13:07 UTCGHSA enrichment
  52. 2026-07-08 07:54 UTCGHSA enrichment
  53. 2026-07-08 03:57 UTCGHSA enrichment
  54. 2026-07-07 23:59 UTCGHSA enrichment
  55. 2026-07-07 20:02 UTCGHSA enrichment
  56. 2026-07-07 13:46 UTCEPSS rescore
  57. 2026-07-07 12:35 UTCGHSA enrichment
  58. 2026-07-07 08:20 UTCGHSA enrichment
  59. 2026-07-07 03:08 UTCGHSA enrichment
  60. 2026-07-06 23:09 UTCGHSA enrichment
  61. 2026-07-06 19:12 UTCGHSA enrichment
  62. 2026-07-06 16:27 UTCEPSS rescore
  63. 2026-07-06 14:29 UTCGHSA enrichment
  64. 2026-07-06 10:31 UTCGHSA enrichment
  65. 2026-07-06 06:28 UTCGHSA enrichment
  66. 2026-07-06 02:23 UTCEPSS rescore
  67. 2026-07-06 02:04 UTCGHSA enrichment
  68. 2026-07-05 22:06 UTCGHSA enrichment
  69. 2026-07-05 18:09 UTCGHSA enrichment
  70. 2026-07-05 14:12 UTCGHSA enrichment
  71. 2026-07-05 10:15 UTCGHSA enrichment
  72. 2026-07-05 06:18 UTCGHSA enrichment
  73. 2026-07-05 02:30 UTCEPSS rescore
  74. 2026-07-05 02:30 UTCEPSS rescore
  75. 2026-07-05 02:20 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20181?
CVE-2026-20181 is a critical vulnerability published on June 17, 2026. A vulnerability in Cisco ISE and ISE-PIC could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to…
When was CVE-2026-20181 disclosed?
CVE-2026-20181 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20181 actively exploited?
CVE-2026-20181 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 51.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-20181?
CVE-2026-20181 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-20181?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20181, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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